DE69434323D1 - Preparation d'un aimant permanent - Google Patents

Preparation d'un aimant permanent

Info

Publication number
DE69434323D1
DE69434323D1 DE69434323T DE69434323T DE69434323D1 DE 69434323 D1 DE69434323 D1 DE 69434323D1 DE 69434323 T DE69434323 T DE 69434323T DE 69434323 T DE69434323 T DE 69434323T DE 69434323 D1 DE69434323 D1 DE 69434323D1
Authority
DE
Germany
Prior art keywords
preparation
aimant permanent
aimant
permanent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69434323T
Other languages
English (en)
Other versions
DE69434323T2 (de
Inventor
Katashi Takebuchi
Shinya Fujito
Shinya Hashimoto
Koichi Yajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP30230393A external-priority patent/JP3367726B2/ja
Application filed by TDK Corp filed Critical TDK Corp
Application granted granted Critical
Publication of DE69434323D1 publication Critical patent/DE69434323D1/de
Publication of DE69434323T2 publication Critical patent/DE69434323T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
DE69434323T 1993-11-02 1994-11-02 Preparation d'un aimant permanent Expired - Lifetime DE69434323T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP29730093 1993-11-02
JP29730093 1993-11-02
JP30230393 1993-11-08
JP30230393A JP3367726B2 (ja) 1993-11-08 1993-11-08 永久磁石の製造方法

Publications (2)

Publication Number Publication Date
DE69434323D1 true DE69434323D1 (de) 2005-05-04
DE69434323T2 DE69434323T2 (de) 2006-03-09

Family

ID=26561073

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69431096T Expired - Lifetime DE69431096T2 (de) 1993-11-02 1994-11-02 Herstellung eines Dauermagneten
DE69434323T Expired - Lifetime DE69434323T2 (de) 1993-11-02 1994-11-02 Preparation d'un aimant permanent

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69431096T Expired - Lifetime DE69431096T2 (de) 1993-11-02 1994-11-02 Herstellung eines Dauermagneten

Country Status (3)

Country Link
US (1) US5595608A (de)
EP (3) EP1260995B1 (de)
DE (2) DE69431096T2 (de)

Families Citing this family (54)

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DE69716588T2 (de) * 1996-04-10 2003-06-12 Showa Denko Kk Gusslegierung für die Herstellung von Dauermagneten mit seltenen Erden und Verfahren zur Herstellung dieser Legierung und dieser Dauermagneten
DE19636284C2 (de) * 1996-09-06 1998-07-16 Vacuumschmelze Gmbh SE-Fe-B-Dauermagnet und Verfahren zu seiner Herstellung
DE19636283A1 (de) * 1996-09-06 1998-03-12 Vacuumschmelze Gmbh Verfahren zur Herstellung eines SE-FE-B-Dauermagneten
DE19636285C2 (de) * 1996-09-06 1998-07-16 Vakuumschmelze Gmbh Verfahren zur Herstellung eines SE-Fe-B-Dauermagneten
US5849109A (en) * 1997-03-10 1998-12-15 Mitsubishi Materials Corporation Methods of producing rare earth alloy magnet powder with superior magnetic anisotropy
JP3470032B2 (ja) * 1997-12-22 2003-11-25 信越化学工業株式会社 希土類永久磁石材料およびその製造方法
US6511552B1 (en) * 1998-03-23 2003-01-28 Sumitomo Special Metals Co., Ltd. Permanent magnets and R-TM-B based permanent magnets
ATE241710T1 (de) * 1998-08-28 2003-06-15 Showa Denko Kk Legierung zur verwendung bei der herstellung von gesinterten magneten auf r-t-b-basis und verfahren zur herstellung von gesinterten magneten auf r-t-b-basis
US6247660B1 (en) * 1998-10-07 2001-06-19 Sumitomo Special Metals Co., Ltd. Process for hydrogen-pulverizing a rare earth metal-based magnetic material, and hydrogen-pulverizing case
EP0994493B1 (de) * 1998-10-14 2003-09-10 Hitachi Metals, Ltd. Gesinterter R-T-B-Dauermagnet
US6302939B1 (en) 1999-02-01 2001-10-16 Magnequench International, Inc. Rare earth permanent magnet and method for making same
JP3231034B1 (ja) * 2000-05-09 2001-11-19 住友特殊金属株式会社 希土類磁石およびその製造方法
KR100562681B1 (ko) * 2000-05-24 2006-03-23 가부시키가이샤 네오맥스 복수의 강자성상을 포함하는 영구자석 및 그 제조방법
US6746545B2 (en) * 2000-05-31 2004-06-08 Shin-Etsu Chemical Co., Ltd. Preparation of rare earth permanent magnets
US6648984B2 (en) 2000-09-28 2003-11-18 Sumitomo Special Metals Co., Ltd. Rare earth magnet and method for manufacturing the same
KR100771676B1 (ko) * 2000-10-04 2007-10-31 가부시키가이샤 네오맥스 희토류 소결자석 및 그 제조방법
US6676773B2 (en) 2000-11-08 2004-01-13 Sumitomo Special Metals Co., Ltd. Rare earth magnet and method for producing the magnet
WO2002038500A2 (en) * 2000-11-08 2002-05-16 Altana Pharma Ag Process for the rehydration of magaldrate powder
US7217328B2 (en) * 2000-11-13 2007-05-15 Neomax Co., Ltd. Compound for rare-earth bonded magnet and bonded magnet using the compound
US7244318B2 (en) * 2001-01-30 2007-07-17 Neomax Co., Ltd. Method for preparation of permanent magnet
JP4023138B2 (ja) * 2001-02-07 2007-12-19 日立金属株式会社 鉄基希土類合金粉末および鉄基希土類合金粉末を含むコンパウンドならびにそれを用いた永久磁石
WO2002079530A2 (en) * 2001-03-30 2002-10-10 Sumitomo Special Metals Co., Ltd. Rare earth alloy sintered compact and method of making the same
KR100535943B1 (ko) * 2001-05-15 2005-12-12 가부시키가이샤 네오맥스 철 기재의 희토류합금 자석 및 그 제조방법
EP1414050B1 (de) * 2001-07-31 2006-10-25 Neomax Co., Ltd. Verfahren zum herstellen eines nanozusammensetzungsmagneten unter verwendung eines atomisierungsverfahrens
WO2003044812A1 (en) * 2001-11-22 2003-05-30 Sumitomo Special Metals Co., Ltd. Nanocomposite magnet
US6994755B2 (en) * 2002-04-29 2006-02-07 University Of Dayton Method of improving toughness of sintered RE-Fe-B-type, rare earth permanent magnets
WO2003107362A1 (ja) * 2002-06-13 2003-12-24 住友特殊金属株式会社 希土類焼結磁石およびその製造方法
TWI233845B (en) * 2002-09-10 2005-06-11 Nikko Materials Co Ltd Iron-based sintered compact and its production method
US7192493B2 (en) * 2002-09-30 2007-03-20 Tdk Corporation R-T-B system rare earth permanent magnet and compound for magnet
US7255752B2 (en) 2003-03-28 2007-08-14 Tdk Corporation Method for manufacturing R-T-B system rare earth permanent magnet
WO2004094090A1 (ja) * 2003-04-22 2004-11-04 Neomax Co. Ltd. 希土類合金粉末の製造方法および希土類焼結磁石の製造方法
US20060054245A1 (en) * 2003-12-31 2006-03-16 Shiqiang Liu Nanocomposite permanent magnets
CN100368584C (zh) * 2004-04-27 2008-02-13 有研稀土新材料股份有限公司 制备稀土磁致伸缩材料的方法和稀土磁致伸缩材料
CA2571401A1 (en) * 2004-06-30 2006-01-12 University Of Dayton Anisotropic nanocomposite rare earth permanent magnets and method of making
US7691172B2 (en) * 2004-08-30 2010-04-06 Nippon Mining & Metals Co., Ltd. Metallic powder for powder metallurgy whose main component is iron and iron-based sintered body
MY149353A (en) * 2007-03-16 2013-08-30 Shinetsu Chemical Co Rare earth permanent magnet and its preparations
EP2366188A1 (de) * 2008-12-01 2011-09-21 Zhejiang University Modifizierter nd-fe-b-permanentmagnet mit hohem korrosionswiderstand
CN102576590B (zh) * 2010-03-31 2014-04-02 日东电工株式会社 永久磁铁及永久磁铁的制造方法
JP5729051B2 (ja) * 2011-03-18 2015-06-03 Tdk株式会社 Ｒ−ｔ−ｂ系希土類焼結磁石
US9272332B2 (en) * 2011-09-29 2016-03-01 GM Global Technology Operations LLC Near net shape manufacturing of rare earth permanent magnets
WO2013054847A1 (ja) * 2011-10-13 2013-04-18 Tdk株式会社 Ｒ－ｔ－ｂ系焼結磁石及びその製造方法、並びに回転機
DE102013004985A1 (de) * 2012-11-14 2014-05-15 Volkswagen Aktiengesellschaft Verfahren zur Herstellung eines Permanentmagneten sowie Permanentmagnet
JP6303480B2 (ja) * 2013-03-28 2018-04-04 Tdk株式会社 希土類磁石
ES2749754T3 (es) * 2013-03-29 2020-03-23 Hitachi Metals Ltd Imán sinterizado a base de R-T-B
CN103219117B (zh) * 2013-05-05 2016-04-06 沈阳中北真空磁电科技有限公司 一种双合金钕铁硼稀土永磁材料及制造方法
DE112014003678T5 (de) * 2013-08-09 2016-04-21 Tdk Corporation Sintermagnet auf R-T-B Basis und Motor
US10550218B2 (en) * 2013-11-08 2020-02-04 Hrl Laboratories, Llc Transparent anti-icing coatings
JP6142793B2 (ja) * 2013-12-20 2017-06-07 Tdk株式会社 希土類磁石
JP6142792B2 (ja) * 2013-12-20 2017-06-07 Tdk株式会社 希土類磁石
JP6142794B2 (ja) * 2013-12-20 2017-06-07 Tdk株式会社 希土類磁石
JP5686214B1 (ja) * 2014-03-28 2015-03-18 Tdk株式会社 Ｒ−ｔ−ｂ系永久磁石
US10446306B2 (en) * 2014-09-17 2019-10-15 Hitachi Metals, Ltd. Method for manufacturing R-T-B based sintered magnet
US9905345B2 (en) 2015-09-21 2018-02-27 Apple Inc. Magnet electroplating
JP6488976B2 (ja) 2015-10-07 2019-03-27 Tdk株式会社 Ｒ−ｔ−ｂ系焼結磁石

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0789521B2 (ja) * 1985-03-28 1995-09-27 株式会社東芝 希土類鉄系永久磁石
US4859254A (en) * 1985-09-10 1989-08-22 Kabushiki Kaisha Toshiba Permanent magnet
DE3783413T2 (de) * 1986-09-16 1993-05-27 Tokin Corp Verfahren zur herstellung eines seltenerd-eisen-bor-dauermagneten mit hilfe eines abgeschreckten legierungspuders.
GB2201426B (en) * 1987-02-27 1990-05-30 Philips Electronic Associated Improved method for the manufacture of rare earth transition metal alloy magnets
DE3750367T2 (de) * 1987-04-30 1994-12-08 Seiko Epson Corp Dauermagnet und sein Herstellungsverfahren.
US4968347A (en) * 1988-11-22 1990-11-06 The United States Of America As Represented By The United States Department Of Energy High energy product permanent magnet having improved intrinsic coercivity and method of making same
US5049335A (en) * 1989-01-25 1991-09-17 Massachusetts Institute Of Technology Method for making polycrystalline flakes of magnetic materials having strong grain orientation
DE4027598C2 (de) * 1990-06-30 1997-09-11 Vacuumschmelze Gmbh Dauermagnet des Typs SE-Fe-B und Verfahren zu seiner Herstellung
JPH04338607A (ja) * 1991-05-16 1992-11-25 Kawasaki Steel Corp 希土類−遷移金属系磁石の製造方法
JP3143157B2 (ja) * 1991-07-12 2001-03-07 信越化学工業株式会社 希土類永久磁石の製造方法
DE4135403C2 (de) * 1991-10-26 1994-06-16 Vacuumschmelze Gmbh SE-Fe-B-Dauermagnet und Verfahren zu seiner Herstellung
JP2782024B2 (ja) * 1992-01-29 1998-07-30 住友特殊金属株式会社 Ｒ−Ｆｅ−Ｂ系永久磁石用原料粉末の製造方法
JP3932143B2 (ja) * 1992-02-21 2007-06-20 Ｔｄｋ株式会社 磁石の製造方法
US5482575A (en) * 1992-12-08 1996-01-09 Ugimag Sa Fe-Re-B type magnetic powder, sintered magnets and preparation method thereof

Also Published As

Publication number Publication date
DE69434323T2 (de) 2006-03-09
DE69431096D1 (de) 2002-09-05
EP1260995A3 (de) 2002-12-04
EP1260995B1 (de) 2005-03-30
EP1260995A2 (de) 2002-11-27
DE69431096T2 (de) 2003-01-23
EP0651401B1 (de) 2002-07-31
EP1073069A1 (de) 2001-01-31
US5595608A (en) 1997-01-21
EP0651401A1 (de) 1995-05-03

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Legal Events

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8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)